﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 开放封闭原则
{
    public interface IDrowMoney
    {
        public void GetDrowMoney();
    }
    public class DrowMoney : IDrowMoney
    {
        public void GetDrowMoney()
        {
            Console.WriteLine("处理用户的存款");
        }
    }
}
